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"How big is the intake runner on the KRE 290cfm heads? If itís opened up to a RAIV gasket you may not be able to use a stock intake unless itís a RAIV or 455HO."
The 290 port does have a RAIV port match - required to have the head flow what it doesI welcome input.....Which heads would you go with? And I thought others might be interested in what Cliff and the Tin Indian guy or gal said.
That being said your intake would NOT currently have a RAIV port match. Can you use your stock intake - yes you can. You would either have it port matched (openings ground open) to a RAIV gasket or you could just use the RAIV intake gasket and it would NOT be "matched". While it is ideal to be matched for what you are doing I doubt you would notice much difference if it was NOT matched. I can tell you this, the stuff certainly wasn't gasket matched from the factory!
Keep this in mind as well, unless you divorce the intake from the water cross over its hard to get good alignment of the intake pots anyway since the timing cover washer / bolt is used to pull the intake forward so that it seals with the doughnut gasket with the back of the timing cover. If you are pulling the intake forward to seal the water cross over you will never have perfect alignment. That is why people concerned with alignment divorce the water cross over from the intake.
Hope that helps"
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